Aquarium CO2 Regulator Mini Gauge Display with Bubble Counter and Check Valve with 110V Solenoid Fits Standard US Tanks

New and very beautiful product

I had a CO2 regulator for my fish tank with two gauges (tank and regulator pressures) and had to buy a separate bubble counter and adjustment valve. This is all one unit -- regulator, valve, gauge and adjustment. I did not have a solenoid shutoff valve on the old one, so I look forward to extending my refill interval by 2x since I can now shut off the CO2 automatically at night when the plants don't need it. I just plugged the solenoid into a simple timer to do that.The only complaint I have is that the adjustment valve should allow a finer adjustment. When the useable range of the adjustment valve is between say, 1 bubble per second and 3 bubbles per second, that adjustment range is a minisule turn on the knob which is hard to get precise. It would be nice if the knob turn between those two CO2 levels was 90 degrees rather than <1 degree of turn.

I don't know what the problem is, but the solenoid keeps blowing the breaker in my basement. My old regulator was working great, but I got this as a backup. I recently got my CO2 tank filled, and decided I'd use the backup this time around, to give it a good test. Didn't have it plugged in for 5 minutes before it blew the breaker. Tried it again, and blew it again. Promptly removed from my tank, and put my old one back on. Real shame too. I was really excited to have a back-up regulator for my aquariums. Shame it didn't work properly.

I got this to replace a brass double gauge one that we were using for our 55 gallon, but I don't think I am going to use it. Compared to the solid brass one, this one does not feel as solid as I expect a regulator too and when talking about 20 gallons of pressurized gas... being cheap is just not worth the risk. I did give it 2 stars because I like the idea of a built in bubble counter, but the whole unit should be made of metal.

This works exactly as I was expecting, it replaced an older unit. No issues so far and very easy to use.